Industrial automation packaged power solution for intelligent motor control and intelligent switchgear with energy management

ABSTRACT

Systems, methods and apparatus are disclosed for interfacing process controllers in a process automation system with one or more intelligent electrical devices of an electrical automation system to use process and electrical control space information to perform actions and make decisions regarding actions in a connected enterprise system to facilitate energy management goals as well as process control goals in view of electrical control space information and process control space information.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority to, and the benefit of, U.S. Provisional Application No. 62/218,801, filed Sep. 15, 2015, the subject matter of which is incorporated herein by reference in its entirety.

BACKGROUND INFORMATION

Manufacturing facilities and other enterprises often include machines, motors, and other controlled devices and processes operated by process control equipment forming a process automation system. These controlled processes and devices, in turn, are powered by power distribution systems. Electrical automation systems have been developed that can be used to conserve energy, perform load shedding, load sharing, and other actions on multiple electrical devices within a power distribution system. However, process control goals and electrical automation or energy management goals are often in conflict, and conventional systems do not provide for process control and electrical automation system actions in concert with one another to achieve optimal energy management as well as process automation goals.

BRIEF DESCRIPTION

Connected enterprise systems, techniques and apparatus are described to facilitate integration of control space or process automation systems with an electrical automation system space of an enterprise to facilitate intelligent electrical space operation and intelligent power management according to process control space operations and considerations.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a connected enterprise including a process automation system with a process controller and an electrical automation system with a plurality of intelligent electrical devices (IEDs), as well as a high accuracy timing device to correlate timing of signals in first and second networks associated with the process automation system and the electrical automation system.

FIG. 2 is a schematic diagram of another example connected enterprise in which the high accuracy timing device is connected with the first switching device and the time signal is distributed to the first network via the first switching device, and the high accuracy timing device is connected to the second network via the second switching device.

FIG. 3 is a schematic diagram of another example connected enterprise in which the high accuracy timing device is coupled with the second switching device to distribute the time signal to the second network, and the high accuracy timing device is coupled to distribute the time signal through the first switching device to the first network.

FIG. 4 is a schematic diagram of another example connected enterprise in which the high accuracy timing device is implemented in the process controller of the process automation system.

FIG. 5 is a schematic diagram illustrating an add-on profile (AOP) interface for IEDs.

FIG. 6 is a schematic diagram illustrating various graphical user interface (GUI) renderings showing display screens in the example connected enterprises.

FIG. 7 is a schematic diagram illustrating an add-on instruction (AOI) implemented by the process controller in the connected enterprises.

FIG. 8 shows a connected enterprise.

FIG. 9 further illustrates capabilities of certain examples.

FIG. 10 shows packaged power use case examples.

DETAILED DESCRIPTION

Referring initially to FIGS. 1-4, systems 100, methods and apparatus are disclosed for interfacing process controllers 112 and other devices 114, 116, 118 in a process automation system or control space 110 with one or more intelligent electrical devices (IEDs) 122 of an electrical automation system 120 to facilitate implementation of process control decision-making and control actions in furtherance of process control goals as well as energy management goals. FIG. 1 shows an example connected enterprise system 100 including a process automation system 110 with a process controller 112 and an electrical automation system 120 with a plurality of intelligent electrical devices (IEDs) 122.

The process automation system 110 includes one or more control devices including a process controller 112, first and second variable frequency drives 114 a and 114 b, a soft starter 116, and a motor control center (MCC) 118 operatively coupled with a first network 108 a. At least some of the process automation system devices 112, 114, 116, 118 are operative to control one or more processes (not shown), and the process automation system devices 112-118 in this example include network connections 108 a 1, 108 a 2, 108 a 3 and 108 a 4 for exchanging data there between and with other networks via a first router or other switching device 104 a. The first switching device 104 a in this example is operatively connected with a computer or other processor 140 to provide communications capability between the processor 140 and the process controller 112 and other devices 114-118 of the process automation system 110.

The electrical automation system 120 includes IEDs 122 a, 122 b, 122 c, 122 d, 122 e and 122 f that are operatively coupled with a second network 108 b and an associated second router or second switching device 104 b via network connections 108 b 1, 108 b 2, 108 b 3, 108 b 4, 108 b 5 and 108 b 6. In this example, two of the IEDs 122 e and 122 f are included within a switchgear lineup 124. In operation, the IEDs 122 provide power to the process automation system 110, and certain of the IEDs 122 a, 122 c and the switchgear lineup 124 are operatively associated with the VFD 114 a, the soft starter 116 and the MCC 118, respectively, by connections 130 a, 130 b and 130 c. Any suitable network configurations, topologies, and protocols can be used for the networks 108 a and 108 b, including without limitation Ethernet type networks. The networks 108, moreover, can individually include any form of connections or nodes, such as wired network nodes, fiber network nodes and/or wireless network nodes.

The connected enterprise system 100 in FIGS. 1-4 further includes a high accuracy timing device 102 to correlate timing of signals in the first and second networks 108 a and 108 b. The timing device 102 is operatively coupled with the switching devices 104 a and 104 b in one example via suitable communications interconnections 106 a and 106 b. In certain examples, moreover, the routers or switching devices 104 are communicatively coupled with one another via a communications connection 150. In operation, the timing device 102 distributes a time signal to at least some of the control devices 112, 114, 116, 118 through the first network 108 a, and distributes the time signal to at least some of the IEDs 122 through the second network 108 b via the routers 104 a and 104 b. In certain examples, the timing device 102 is a GPS receiver. Other implementations of a timing device 102 are possible, including without limitation a precision time protocol (PTP) master clock server, a network time protocol (NTP) server, a fly wheel converter technology device, or a simple network time protocol (SNTP) server. Distribution of the time signal from the timing device 102 provides time synchronization that facilitates intelligent energy management decision-making and actions by at least one of the control devices 112, 114, 116, 118 in conjunction with process control decision-making and actions. In addition, the time signal is distributed in certain examples from the timing device 102 over a standard Ethernet communication media 108 of the first and second networks, which can individually include wired, wireless, fiber optic and/or other network technologies.

In the example of FIG. 1, the timing device 102 is connected to the first switching device 104 a as well as to the second switching device 104 b via corresponding communications connections 106 a and 106 b. FIG. 2 shows another example configuration, in which the high accuracy timing device 102 is connected with the first switching device 104 a via a connection 106 a, and the time signal is distributed to the first network 108 a via the first switching device 104 a, and to the second network 108 b via the router connection 150 and the second switching device 104 b. In FIG. 3, the timing device 102 is coupled via connection 106 b with the second switching device 104 b to distribute the time signal to the second network 108 b via the switching device 104 b, and to distribute the time signal through the connection 150 and the first switching device 104 a to the first network 108 a. FIG. 4 illustrates another example in which the timing device 102 is implemented in the process controller 112 of the process automation system 110. In this case, the time signal from the high accuracy timing device 102 is distributed from the process controller 112 to the switching devices 104 a, 104 b and the other devices of the first and second networks 108 a and 108 b.

Referring also to FIGS. 5-7, in addition to time synchronization, the disclosed examples further include execution of an ad-on profile (AOP) 510 (FIGS. 5 and 6) (e.g., executed by the processor 140 in FIGS. 1-4) to configure the process controller 112 to define data exchanged between an IED 122 of the electrical automation system 120 and the process controller 112, as well as execution in the process controller 112 of one or more ad-on instructions (AOIs) 710 (FIG. 7) to selectively convert unsigned data from the IED 122 into signed data and to scale the data from at least one of the IEDs 122 according to user-defined scale factors 730 to provide scaled data values for use by the process controller 112 in controlling at least one process. In these examples, operative interconnection of the process controller 112 with the first network 108 a to obtain electrical control space information, along with the time synchronization between the networks 108 a and 108 b enables the process controller 112 to implement one or more process control goals, and to implement one or more energy management goals at least partially according to process control information and electrical control space information obtained from at least one of the intelligent electrical devices IEDs 122 of the electrical automation system 120. As detailed further below in connection with FIGS. 8-10, these capabilities facilitate system-wide intelligent energy management and process control not possible with conventional enterprise configurations in which the process control space and the electrical control space were effectively and independently operated.

FIG. 5 shows further details of an example AOP interface 510 for an IED 122. In one example, the processor 140 implements (e.g., executes) the EDS AOP 510 according to an electrical data sheet (EDS) file 502 provided by a manufacturer of a given IED 122. The processor 140 configures the process controller 122 using the AOP 510 to define data to be exchanged between a given IED 122 of the electrical automation system 120 and the process controller 112 in a communication stream over a networked communications protocol according to the electronic data sheet EDS file 502 corresponding to the given IED 122. The processor 140 in certain examples executes a number of EDS AOPs 510 each individually corresponding to an IED 122 according to a corresponding EDS file 502. In this manner, the process controller 112 is configured to communicate with one or more IEDs 122 of the electrical automation system 120. The networked communications protocol in one example includes at least one of IEC 61850 MMS, GOOSE, SV, DNP 3.0, IEC 60870-5, Modbus TCP, Ethernet/IP and DeviceNet. In addition, the communication stream can include any suitable form of messages or messaging, including Class 1 and/or Class 3 messages in certain examples.

In one example, the processor 140 in FIG. 5 implements the EDS AOP 510 in order to send a configuration packet or multiple packets to the process controller 112 defining the interface with the IED 122 according to the EDS file 502. At 512, the processor 140 receives or analyzes the EDS file 502 and parses parameters of the EDS file 502 in order to determine or identify parameters associated with the IED 122 that are of interest to the process controller 112. At 514, the processor 140 identifies the IED vendor from the first parameters, and reads controller tags from the EDS file 502 at 516. In one example, the tags represent parameters or values that will be exchanged between the IED 122 and the process controller 112 in operation. At 518, the processor 114 writes the identified controller tags to the process controller 112. In operation, the processor 114 may execute control monitoring programs by which the process controller 112 provides real-time data 530 according to one or more of the written controller tags, and the real-time data 530 can be monitored by a user of the processor 140 via a graphical user interface (GUI) 532 implemented by the processor 140. In this manner, the EDS AOP interface 510 configures the process controller 112 to exchange tags (e.g., parameters, values, etc.) with the IED 122 in real time operation to facilitate process control goals implemented by the process controller 112 as well as energy efficiency goals associated with an overall system. The tags written to the process controller 112 by the EDS AOP interface 510 in one example configure the process controller 112 to define how the data (e.g., tags) will be presented from the IED 122 to the process controller 112, and which parameters are expected from the IED 122.

In operation, the process controller 112 implements an input assembly 520 as well as an output assembly 522 based on the configuration parameters provided by the EDS AOP 510. The input assembly is the data stream coming from the IED 122 through the network connection to the process controller 112, and the output assembly is the data stream going from the process controller 112 to the IED 122 during real time operation. In one example, the input assembly data flow 520 and the output assembly data flow 522 are implemented using any suitable network technologies and protocols, such as Rockwell Ethernet/IP in one example.

Referring also to FIG. 6, and certain examples, moreover, the processor 140 executes the EDS AOP 510 to provide a graphical user interface (GUI) 532 (FIG. 5) including renderings in the form of user screens 600 for assignment of an IP address for the given IED 122, configuring a requested packet interval RPI for class 1 connections, and/or filtering of real time data tags from the given IED 122. FIG. 6 shows various GUI renderings in the form of display screens in the example connected enterprise system 100 above, including screenshot renderings 602, 604, 608 and 612 of the graphical user interface 532 which are available to the user of the processor 140 in FIG. 5. The user interface provides a navigable rendering 602 allowing a user to select among various devices or entities connected to the network 108, including an IED 122 for which the process controller 112 has been configured by the EDS AOP 510 according to a corresponding EDS file 502. Selection of a particular IED 122 in the listing of the rendering 602 provides the user with a corresponding rendering or screen 604 as shown in FIG. 6, in this example an air circuit breaker of the electrical automation system 120. The user can assign any desired name to the configured IED 122, and the screen 604 allows assignment of an IP address for communicating with the IED 122. The rendering or screen 608 shows the parameters obtained from the EDS file 502 for the selected IED 122. During real time operation, the parameters screen 608 allows the user to monitor live values via class 3 messaging from the IED 122 through the network(s) 108 to the process controller 112, along with the configured units and styles in the indicated columns 610 shown in FIG. 6. The parsing of the EDS parameters at 512 in the EDS AOP 510 of FIG. 5 populates the parameters screen rows including a tag or value name, units, style and description. The other column information is populated in the parameter screen 608 by class 1 messaging. The EDS AOP 510 also renders a connection tab that allows the user of the processor 140 to configure the (requested packet interval) timing (RPI) of packets transmitted through the network(s) 108 between the IED 122 and the process controller 112 for class 1 message exchange rate control. This allows configurable tradeoff between data latency to implement process and electrical system goals, and network bandwidth resources for data exchange.

The renderings 608 and 612 in FIG. 6 allow the user of the processor 140 to filter real-time data tags from the IED 122 within its environment. The EDS AOP 510 filters through the IED tags described in the EDS file 502. In one example, the EDS AOP 510 allows the user to view all the parameters parsed at 512 as shown in the screenshots 608 and 612, including the ability to sort the IED parameters using a drop-down list 614 to sort the parameters by absolute min/max measures, commands, current measures, energy measures, other measures, power measures, status or voltage measures. In practice, the EDS AOP 510 configures the process controller 112 with the parameters from the EDS file 502, and allows access by process monitoring software running in the external computer or processor 142 monitor real-time values for some or all of the IED parameters through a graphical user interface as shown in the example screens 608 and 612. In this example, the user can view a name, value, units, style and description for each individual parameter.

Referring also to FIG. 7, a schematic diagram 700 shows an add-on instruction (AOI) 710 according to further aspects of the present disclosure. In certain examples, the process controller 112 executes the AOI 710 to selectively convert unsigned data from the IED 122 into signed data. In one example, execution of the AOI 710 interfaces a signed data type to an industrial controller tag within a computing system environment. Execution of the AOI 710 also scales the data from at least one of the IEDs 122 according to user-defined scale factors 730 to provide scaled data values for use by the process controller 112 in controlling at least one process. In certain examples, the AOI 710 scales the data from at least one of the IEDs 122 in the form of unsigned integers to signed real values or floating point values. The AOI 710 in FIG. 7 is implemented by the process controller 112, and is configured according to the EDS file 502 and/or user scale factors 730. In one example, the AOI 710 is implemented as added instructions to ladder logic programming code implemented or executed by the process controller 112 in real time in order to process the input assembly management data received from the IED 122 across the network or networks 108. In the illustrated example, moreover, the AOI 710 implements conversion of unsigned data from the IED 122 into signed data for consumption by the process controller 112. The AOI 710 parses the incoming data stream from the IED 122 at 712, and determines at 714 whether any of the IED data is unsigned. In this regard, certain IEDs 122 may provide unsigned binary data for one or more parameters identified in the EDS file 502. In one example, the IED 122 may provide unsigned integer values to represent a range for a given parameter that may include both positive and negative numbers. The AOI 710 identifies these as unsigned data at 714. The process controller 112, on the other hand, may be configured to operate unsigned data. Accordingly, the AOI converts any unsigned data from the IED 122 into signed data for use by the process controller 112. In this manner, potentially large unsigned values from IEDs 122 will not be misinterpreted by the process controller 112 as very large negative numbers. If any of the data is unsigned (YES at 714), the AOI 710 type casts the data to a next larger size at 716. For example, an unsigned 8-bit data word is typecast at 716 to be a 16-bit signed data word. In another example, an unsigned 16-bit data word is typecast at 716 to be a 32 bit signed data word. The scaling up at 716 facilitates addition of a signed bit to the data without loss of resolution.

In one example, the AOI 710 uses information from the corresponding EDS file 502 to determine which values of the input stream from the IED 122 are known to be unsigned values. In pursing a given input stream at 712, the AOI 710 is executed to selectively typecast unsigned data values at 714 and 716 to accommodate IEDs 122 that may provide unsigned data values. In this regard, the EDS file 502 defines the data formatting for all the parameters provided by the corresponding IED 122, including whether or not a given parameter is formatted as an unsigned data value.

At 718, the AOI 710 scales the raw data according to scaling inputs parsed at 720 from the user scale factors 730. The AOI 710 than writes the scaled controller tags or data parameters to the process controller 112 at 722. The parameter values are received from the IED 122 as integers. The user scale factors 730 convert the input IED data from integers to real numbers such as engineering units, and are provided to configure the AOI 710 by user input via the processor 140. The AOI 710 in one example receives user inputs 730 for voltage scaling factors, current scaling factors, and all other parameters provided by the IED 122. In executing the AOI 710, the process controller 112 uses the user scale factors 730 to scale the raw IED input data at 718 (directly or after typecasting of unsigned data at 716). The scaled data values or tags are written to the process controller 112 at 722. In one example, the process controller 112 implements one or more process control functions to implement process goals as well as energy goals, and the AOI 710 provides the scaled controller tags at 722 to predetermined memory locations of the process controller 112 for use and consumption by the process control functions implemented in the controller 112. For example, the process control function or instructions and the AOI 710 can be software modules implemented on a single processor of the process controller 112, with the AOI 710 passing scaled data values as controller tags for consumption by the process control instructions. The scaling factors 730 can be input by a user of the processor 140 during configuration of the process controller 112 for a particular IED 122 upon assessing the IED parameters shown in the GUI renderings 608, 612 in FIG. 6. In certain examples, the IED AOP 510 determines one or more of the scaling factors 730 and stores these in the memory of the process controller 112, such as a controller data table for use in operation of the process controller 112 to implement one or more process control and/or energy management goals. The controller data table in one example allows a control program to operate according to the scaled data value or values, and the values may be accessed by other devices on the network(s) 108 for data monitoring or other uses. In one example, as mentioned above, the scaled values can be monitored in real time by the processor 140 and rendered to a user via the GUI screens 608 and 612 in FIG. 6. In practice, one AOI 710 is configured in the process controller 112 for each configured IED 122 on the network.

FIG. 8 shows another example connected enterprise system 800. The connected enterprise 800 includes a process control space (e.g., process automation system 110 in FIGS. 1-4 above), with motor drives, motor starters and other control actuators, overloads, control logic and associated devices to control one or more processes. In addition, the connected enterprise system 800 in FIG. 8 includes an electrical control space (e.g., electrical automation system 120 in FIGS. 1-4) with switchgear and other apparatus for controlling power distribution and other functions, as well as an energy management system. These system components are operatively, communicatively, interconnected by way of one or more networks such as Ethernet networks the, first and second networks 108 a and 108 b above). The connected enterprise system 800 includes a variety of devices and control centers operatively coupled with one another through an integrated architecture using one or more communication protocols and intelligent devices. Disclosed examples extend connected enterprises and the control space thereof with an electrical automation system space of the enterprise to facilitate intelligent electrical space operation and intelligent power management according to process control space operations and considerations through time synchronization in the networks 108, the use of an AOP 510 to configure the process controller 112 to receive data from a given IED 122 and/or by execution of an AOI 710 by the process controller in order to process data from the IED 122. The process automation system components serve manufacturing process devices and implement process control computations and actions to achieve manufacturing or production goals (i.e., process control goals). The electrical automation system implements power distribution for the enterprise (e.g., plant or facility) to connect the enterprise systems and devices with grid power or power from auxiliary sources (e.g., wind, solar, fuel cell, geo-thermal, etc) and controls the switchgear and power distribution devices upstream from the process perspective.

The connected enterprise system 800 provides a packaged power system including intelligent control space controllers and components that implement process control features as well as power management features for interfacing with the electrical space systems for intelligent power management and process control. The disclosed embodiments provide a packaged power solution that enables adjacent intelligent electrical devices to integrate into the connected enterprise platform. Certain embodiments include single communication and control infrastructure for electrical and automation systems. In one example, EtherNet/IP and IEC 61850 protocols can be used over unmodified Ethernet network interconnections to interface the electrical control space and the process control space, for example with electrical substation monitoring and control added to a Logix control architecture system such as those manufactured by Rockwell Automation. In addition, certain embodiments provide synchronization of facility wide data on the same clock to provide high accuracy time stamping. This feature, in turn, facilitates intelligent energy management decision-making and actions in conjunction with precise process control capabilities.

Disclosed embodiments tie the process control space and electrical control space systems together to enhance the connected enterprise concept, for example, using Ethernet/IP and 61850 networks or other suitable network technologies and protocols. This operative interconnection enables control spaces devices and processes to participate in decision-making for actions taken in the electrical space. For example, the control space can control a process so as to prevent one or more controlled processes from being powered down during an electrical space load shedding action, and instead selectively participate in load shedding selections and/or control space power reduction actions through process control actions to facilitate load shedding goals while also facilitate process control goals. The process control actions can thus be tailored in consideration of energy management goals and vice versa. The control devices in the process space can manage the process(es) in a proactive way to drive efficiency, cost savings and other power management goals.

Switchgear in the electrical control space includes power switching devices, such as circuit breakers, that control provision of electrical energy to various portions and pieces of a plant or facility. For instance, switchgear might have 20 different circuit breakers feeding 20 different processes, or feeding 20 different downstream loads. Energy management goals include load shedding and optimization, as well as intelligent source selection in view of efficiency and cost considerations, and process space controllers participate in energy management decisions and actions in the connected enterprise. Intelligent process control devices perform these tasks along with process control tasks in certain embodiments. In addition to power grid sources, other sources of energy can be controlled, in addition to selection from among a variety of power sources. Energy management information from intelligent devices and systems in the energy control space is accessible by process space controllers to provide an integrated approach to tying the electrical automation systems to the process automation space. By this interconnection and programming, the process space devices and systems can proactively perform actions, including process control adaptations or adjustments, on the process side to facilitate load shedding or other power distribution or energy management goals.

An energy management entity is networked together with a distributed control system (DCS) or process side equipment in the control space and switchgear is communicatively connected to both the DCS and the energy management component. The switchgear performs power switching, load shedding, power distribution, and other functions under control of either the energy management system or the process control system or both. In one example, the process control system receives a prompt from the energy management entity indicating that load shedding is desired. The process space control system determines whether process control actions can be taken or modified to reduce loading, and may also determine which, if any, controlled processes in the process space can be shut down in order to accommodate the load shedding request. In other embodiments, the process control system receives energy management information from intelligent devices in the electrical space, as well as information pertaining to energy cost schedules, information from power utilities regarding desired load reductions, information pertaining to availability of alternate energy sources (e.g., wind, solar, geothermal, etc.), and the process space controller(s) can proactively initiate process control modifications to reduce power consumption in one or more controlled processes, and/or decide which controlled processes can be shut down to accommodate load shedding goals. Disclosed embodiments thus provide energy management-related information to process controllers and systems to facilitate intelligent energy management in a connected enterprise.

FIG. 9 further illustrates a view 900 showing capabilities of certain embodiments. The Rockwell Automation Logix products can be advantageously employed in certain embodiments, providing significant scalability and data management capabilities to implement composite electrical control and process control features providing energy management advantages for a connected enterprise. Disclosed embodiments provide intelligent motor control and the capability of implementing partnering networks with electrical control space systems and any suitable form of separate or integrated intelligent power management systems. Moreover, described embodiments can be constructed using existing control space equipment modified to implement intelligent energy management functionality by operative interconnection with intelligent devices and other systems of an electrical control space (e.g., switchgear, power distribution control apparatus, etc.) and separate or integrated power management systems. The enhanced process control space capabilities provide agility for connected enterprise management within a business, as well as technical integration and differentiation with interconnected networks of potentially different protocols to construct a packaged power system potentially having components provided by multiple qualified suppliers.

In FIG. 9, various enhanced capabilities of the packaged power systems and techniques are shown with associated value, benefits and examples. The first involves providing data from the electrical space into the process control space and vice versa. This increases the efficiency throughput of that access system. In one example, this is accomplished by synchronizing deterministic type data from the electrical device. The synchronized information from the electrical control space can be used for any purpose by the process control space controllers, such as monitoring or taking/Modifying a process control action, etc. the process controllers must have process control information as well as data from the electrical distribution space, allowing the process control or automation space systems to close process loops or react accordingly.

The second example in FIG. 9 involves integrated energy control, providing the ability of process space controllers to react to management from an energy standpoint. This feature is facilitated in some examples by the increased availability of electrical control space data from the first example. Using this information, the process space controllers can make smart energy decisions or react according to changing energy or power distribution conditions based on information from the electrical control space. One non-limiting example is for load shedding or facility load flow. Load shedding includes shutting down portions of the switchgear of the electrical distribution space based on need or conditions or events in the automation space. If there is a large amount of energy, electricity, coming into the system, and something is amiss, issues may occur downstream that start tripping breakers due to excessive current draw. Alternatively, if there is some kind of fault condition, the process space system can initiate a reaction upstream in the distribution space before having to shut down the whole plant. The packaged power system is thus able to provide intelligent reaction based on the process data to facilitate process as well as energy management goals.

For load shedding and other load management goals, the system uses the switchgear to implement dynamic load based shedding based on informed demand information based on the process data. For example, if a utility is requesting load shedding, the process space system can potentially slow down a conveyor line or take other process control actions (e.g., within acceptable process control parameters) to reduce current draw and thereby reduce energy consumption. In this manner, the system can intelligently select between reduced energy operation of the process control space or shutting down non-critical process control space loads to facilitate energy management goals while still achieving desired process space goals. In this regard, many energy management goals and processes, such as selective load shedding or load reduction have sufficient lead time before actions must be taken to allow the process control space systems to act accordingly. Moreover, synchronization of information from the electrical control space as well as time-dependent request from utilities and other energy management system components facilitates quick response by the process control space equipment to achieve these goals.

In another example, an industrial facilities manager of a facility consuming large amounts of energy, such as for a steel mill, oil refinery or mining site, etc., can proactively initiate load shedding or energy consumption reduction using the process control space equipment in order to reduce consumption during peak demand windows or other conditions in which the price of energy is high. In certain embodiments, the process control space equipment interrogates or otherwise gathers information from the electric distribution system, where the facility is going to be metering to proactively communicate between these electrical control and process control devices (e.g., MCC units, drives, spark conveyor systems, etc.) and adjust one or more controlled processes to achieve a “low energy” state. As part of this, the system can determine which processes might not be critical, and potentially shut these down for all or a portion of a peak demand time period. In this manner, the system can proactively save energy and as well as cost for the end user. This capability is unlike conventional electrical control space equipment which is essentially binary, i.e., either turning on loads or turning off loads. Moreover, this capability mitigates or avoids potential safety or end product scrap by identifying loads associated with controlled processes in which partially manufactured goods would be scrapped if the process were shut down arbitrarily, or for specific processes were safety concerns could be compromised by arbitrarily shutting down the process.

The system can also provide an energy view including data and/or graphical representations for use by a facilities manager to consolidate process control information as well as electrical space information, which can be supplemented with energy management information. The system thus provides facilities management with improved tools for managing an entire plant or multiple plants. The system further provides an interface allowing management to initiate proactive adjustments in the process control and/or electrical control spaces for any number of purposes, including without limitation, energy management goals. Furthermore, the process control space systems can be configured by management or other user with rule sets and other algorithmic for role-based logic for implementing energy management goals and/or specific process control goals. The user is thus presented with a true plan-wide energy operation view from one or more energy sources (e.g., utilities, on-site solar power sources, geothermal energy sources, wind power sources, on-site chargeable battery banks, etc.) down through the power distribution architecture to the individual process control devices and equipment. In this manner the process control space control equipment can be used in certain examples as a data aggregator for providing consolidate information regarding energy consumption as well as process control states, machine status information, etc. In another non-limiting example, a melting furnace can be adjusted empirically based on such a graphical rendering, or algorithmically in order to operate at a more efficient rate.

In the third example of FIG. 9, the system also facilitates predictive diagnostics. In particular, the process space control system can gather and analyze status and other information regarding intelligent devices in the electrical control space. Thus, whereas prior systems do not provide an integrated plan-wide prognosis or diagnosis framework, the packaged power system approach facilitates using both predictive and preventative diagnostics using information from the process control space as well as from the electrical control space. In this manner, if one or more components in the electrical control space can be identified as being degraded or likely to become degraded, proactive maintenance can be scheduled. In particular, intelligent devices can provide data through the interface to the process space control system, with which the system can predict wear over time and take one or more remedial measures.

The fourth example in FIG. 9 relates to Arc Flash Detection or detection of other potential hazard condition, in both the process control space and the electrical control space. In one example, detection or prediction of an arc flash condition in a process control device and/or in an electrical control space device can be signaled through the network to the process control space control equipment. The system can react by signaling an upstream overload relay in order to prevent or mitigate an arc flash condition before it happens, or before the damage becomes significant. This represents a significant improvement over purely reactionary actions by conventional electrical control space devices (e.g., tripping breakers based on excessive current draw).

The system, including the network interfacing, provides a unified network in a control architecture that can adapt the information from multiple control domains or spaces, and provides for synchronizing the information for intelligent decision-making and actions in either domain. In this manner, data from the electrical control spaces correlated with data from the process control space and vice versa. To do this, any suitable synchronization protocol can be used, including IEEE synchronization protocols, and protocols and synchronization models adopted for the IEC 61850 network technology. Thus, the disclosed process control space control equipment advantageously employs information from both domains, and assesses both energy consumption as well as device health/status in both domains, and implements energy management goals, as well as diagnostic/system maintenance goals, in addition to process control goals.

FIG. 10 shows an overview 1000 of packaged power use case examples. This example uses EtherNet/IP and IEC 61850 protocols over an unmodified Ethernet operating in a stable & reliable manner, and employs a system reference architecture incorporating both protocols. The interface also supports EMAX2 EKIP COM Ethernet/IP modules using unsigned data types, and provides support to direct or indirect unsigned data in the process control space. One implementation integrates devices using AOPs by developing the code in the form on an AOI copy EMAX2 raw data into Logix data types including: UINT (16 bit) as DINT (32 bit), UDINT (32 bit) as LINT (64 bits), Integration based on generic profile for EtherNet/IP devices, AOI would assign tag names to individual parameters in data table provided by EMAX2. In certain embodiments, the electrical control space equipment provides data formats for presentation to Rockwell automation Logix controller(s) in the process control space, including EMAX2 Ekip Module FW change to translate UINTs to DINTs, and the electrical control space equipment enables utilization of EDS AOP. Moreover, the system allows future development of custom AOP profiles, and may support SEL RTAC over EtherNet/IP.

In the preceding specification, various embodiments have been described with reference to the accompanying drawings. It will, however, be evident that various modifications and changes may be made thereto, and additional embodiments may be implemented, without departing from the broader scope of the invention as set forth in the claims that follow. The specification and drawings are accordingly to be regarded in an illustrative rather than restrictive sense.

What has been described above includes examples of the subject innovation. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the claimed subject matter, but one of ordinary skill in the art may recognize that many further combinations and permutations of the subject innovation are possible. Accordingly, the claimed subject matter is intended to embrace all such alterations, modifications, and variations that fall within the spirit and scope of the appended claims. In particular and in regard to the various functions performed by the above described components, devices, circuits, systems and the like, the terms (including a reference to a “means”) used to describe such components are intended to correspond, unless otherwise indicated, to any component which performs the specified function of the described component (e.g., a functional equivalent), even though not structurally equivalent to the disclosed structure, which performs the function in the herein illustrated exemplary aspects of the claimed subject matter. In this regard, it will also be recognized that the innovation includes a system as well as a computer-readable medium having computer-executable instructions for performing the acts and/or events of the various methods of the claimed subject matter. In addition, while a particular feature of the subject innovation may have been disclosed with respect to only one of several implementations, such feature may be combined with one or more other features of the other implementations as may be desired and advantageous for any given or particular application. Furthermore, to the extent that the terms “includes,” and “including” and variants thereof are used in either the detailed description or the claims, these terms are intended to be inclusive in a manner similar to the term “comprising.”

Some portions of the detailed description herein are presented in terms of algorithms and symbolic representations of operations on data bits performed by conventional computer components, including a central processing unit (CPU), memory storage devices for the CPU, and connected display devices. These algorithmic descriptions and representations are the means used by those skilled in the data processing arts to most effectively convey the substance of their work to others skilled in the art. An algorithm is generally perceived as a self-consistent sequence of steps leading to a desired result. The steps are those requiring physical manipulations of physical quantities. Usually, though not necessarily, these quantities take the form of electrical or magnetic signals capable of being stored, transferred, combined, compared, and otherwise manipulated. It has proven convenient at times, principally for reasons of common usage, to refer to these signals as bits, values, elements, symbols, characters, terms, numbers, or the like.

It should be understood, however, that all of these and similar terms are to be associated with the appropriate physical quantities and are merely convenient labels applied to these quantities. Unless specifically stated otherwise, as apparent from the discussion herein, it is appreciated that throughout the description, discussions utilizing terms such as “processing” or “computing” or “calculating” or “determining” or “displaying” or the like, refer to the action and processes of a computer system, or similar electronic computing device, that manipulates and transforms data represented as physical (electronic) quantities within the computer system's registers and memories into other data similarly represented as physical quantities within the computer system memories or registers or other such information storage, transmission or display devices.

The exemplary embodiment also relates to an apparatus for performing the operations discussed herein. This apparatus may be specially constructed for the required purposes, or it may comprise a general-purpose computer selectively activated or reconfigured by a computer program stored in the computer. Such a computer program may be stored in a computer readable storage medium, such as, but is not limited to, any type of disk including floppy disks, optical disks, CD-ROMs, and magnetic-optical disks, read-only memories (ROMs), random access memories (RAMs), EPROMs, EEPROMs, magnetic or optical cards, or any type of media suitable for storing electronic instructions, and each coupled to a computer system bus.

The algorithms and displays presented herein are not inherently related to any particular computer or other apparatus. Various general-purpose systems may be used with programs in accordance with the teachings herein, or it may prove convenient to construct more specialized apparatus to perform the methods described herein. The structure for a variety of these systems is apparent from the description above. In addition, the exemplary embodiment is not described with reference to any particular programming language. It will be appreciated that a variety of programming languages may be used to implement the teachings of the exemplary embodiment as described herein.

A computer or machine-readable medium includes any mechanism for storing or transmitting information in a non-transitory form readable by a machine (e.g., a computer). For instance, a machine-readable medium includes read only memory (“ROM”); random access memory (“RAM”); magnetic disk storage media; optical storage media; and flash memory devices, just to mention a few examples. The methods illustrated throughout the specification, may be implemented in a computer program product that may be executed on a computer. The computer program product may comprise a non-transitory computer-readable recording medium on which a control program is recorded, such as a disk, hard drive, or the like. Common forms of non-transitory computer-readable media include, for example, floppy disks, flexible disks, hard disks, magnetic tape, or any other magnetic storage medium, CD-ROM, DVD, or any other optical medium, a RAM, a PROM, an EPROM, a FLASH-EPROM, or other memory chip or cartridge, or any other tangible medium from which a computer can read and use.

It will be appreciated that variants of the above-disclosed and other features and functions, or alternatives thereof, may be combined into many other different systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations or improvements therein may be subsequently made by those skilled in the art which are also intended to be encompassed by the following claims. In the preceding specification, various embodiments have been described with reference to the accompanying drawings. It will, however, be evident that various modifications and changes may be made thereto, and additional embodiments may be implemented, without departing from the broader scope of the invention as set forth in the claims that follow. The specification and drawings are accordingly to be regarded in an illustrative rather than restrictive sense. 

The following is claimed:
 1. A method of providing time synchronization of facility wide data between a process automation system with one or more control devices to control one or more processes and an electrical automation system with one or more intelligent electrical devices (IEDs) to provide power to the process automation system, the method comprising: distributing a time signal from a timing device through a first network operatively coupled with the control devices of the process automation system, wherein the control devices include a variable frequency drive (VFD); distributing the time signal from the timing device through a second network operatively coupled with the IEDs of the electrical automation system, wherein the timing device is connected to a first switching device to distribute the time signal to the first network and the timing device is connected to a second switching device to distribute the time signal to the second network; shutting down a process of the one or more processes during a peak demand time period by using the process automation system to gather information from the electrical automation system; and executing an add-on instruction (AOI) in a process controller of the process automation system to selectively convert unsigned data from the IED into signed data and to scale the data from at least one of the IEDs according to user-defined scale factors to provide scaled data values for use by the process controller in controlling at least one process for the time synchronization of the facility wide data.
 2. The method of claim 1, wherein the timing device is a GPS receiver, a precision time protocol (PTP) master clock server, a network time protocol (NTP) server, a fly wheel converter technology device, or a simple network time protocol (SNTP) server.
 3. The method of claim 1, wherein the time synchronization facilities intelligent energy management decision-making and actions by at least one of the control devices in conjunction with process control decision-making and actions.
 4. The method of claim 1, wherein the time signal is distributed from the timing device over a standard Ethernet communication media.
 5. The method of claim 4, wherein the standard Ethernet communication media includes a wired network node, a fiber network node, or a wireless network node.
 6. The method of claim 1, further comprising configuring the process controller of the process automation system using an add-on profile (AOP) executed on a processor to define data to be exchanged between a given IED of the electrical automation system and the process controller according to an electronic data sheet (EDS) file corresponding to the given IED.
 7. The method of claim 1, further comprising executing the AOI in the process controller to scale the data from at least one of the IEDs in the form of unsigned integers to signed real values or floating point values.
 8. The method of claim 1, further comprising executing the AOI in the process controller to interface a signed data type to an industrial controller tag within a computing system environment.
 9. A connected enterprise system, comprising: a process automation system, including one or more control devices operatively coupled with a first network and operative to control one or more processes, wherein the control devices include a variable frequency drive (VFD), the process automation system including a process controller; an electrical automation system, including one or more intelligent electrical devices (IEDs) operatively coupled with a second network and operative to provide power to the process automation system; and a timing device operative to distribute a time signal to at least some of the control devices through the first network, and to distribute the time signal to at least some of the IEDs through the second network, wherein the timing device is connected to a first switching device to distribute the time signal to the first network and the timing device is connected to a second switching device to distribute the time signal to the second network; wherein the process controller of the process automation system is configured to execute an add-on instruction (AOI) to selectively convert unsigned data from the IED into signed data and to scale the data from at least one of the IEDs according to user-defined scale factors to provide scaled data values for use by the process controller in controlling at least one process.
 10. The connected enterprise system of claim 9, wherein the first and second networks individually include a wired network node, a fiber network node, or a wireless network node.
 11. The connected enterprise system of claim 9, wherein the process controller of the process automation system is configured using an add-on profile (AOP) executed on a processor to define data exchanged between an IED of the electrical automation system and the process controller.
 12. The connected enterprise system of claim 9, wherein the process controller is operatively interconnected with a controlled process and with the first network to obtain electrical control space information, the process controller configured to implement one or more process control goals, and to implement one or more energy management goals at least partially according to process control information and electrical control space information obtained from at least one of the intelligent electrical devices (IEDs) of the electrical automation system. 